scholarly journals Wireless Power Transfer for 6G Network Using Monolithic Components on GaN

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Rajinikanth Yella ◽  
Krishna Pande ◽  
Ke Horng Chen
Keyword(s):  
Wireless Power Transfer ◽  
Power Converter ◽  
Band Pass Filter ◽  
Power Transfer ◽  
Wireless Power ◽  
Matching Network ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Dc Power ◽  
Monolithic Components

A novel architecture for Wireless Power Transfer (WPT) module usingmonolithic components on GaN is presented in this paper. The design ofsuch a WPT module receives DC power from solar panels, consists ofphotonic power converter (PPC), beamforming antenna, low pass filter,input matching network, rectifier, output matching network and logic circuit(off-chip) which are all integrated on a GaN chip. Our WPT componentsshow excellent simulated performance, for example, our novel beamforming antenna and multiple port wideband antenna have a gain of 8.7 dBand 7.3 dB respectively. We have added a band pass filter to the rectifieroutput which gives two benefits to the circuit. The first one is filteringcircuit will remove unwanted harmonics before collecting DC power andsecond is filter will boost the efficiency of rectifier by optimizing the loadimpedance. Our proposed rectifier has RF-DC conversion efficiency of74% and 67% with beam-forming antenna and multiple port wide bandantenna respectively. Our WPT module is designed to charge a rechargeablebattery (3 V and 1 mA) of a radio module which will be used between twoantennas in future 5G networks. We believe our proposed WPT modulearchitecture is unique and it is applicable to both microwave and millimeterwave systems such as 6G.

Theoretical Analysis of Prospects of Organic Photovoltaics as a Multi-Functional Solar Cell and Laser Power Converter for Wireless Power Transfer

2020 ◽  
Vol 20 (8) ◽  
pp. 4878-4883
Author(s):  
Premkumar Vincent ◽  
Jaewon Jang ◽  
In Man Kang ◽  
Philippe Lang ◽  
Hyeok Kim ◽  
...  
Keyword(s):  
Laser Power ◽  
Power Converters ◽  
Power Conversion ◽  
Wireless Power Transfer ◽  
Power Converter ◽  
Potential Candidate ◽  
Power Transfer ◽  
Wireless Power ◽  
Power Harvesting ◽  
Single Junction

Few reports have researched on utilization of laser power conversion systems for wireless power transfer in aeronautical applications. III–V compound semiconductors are commonly used as photovoltaic (PV) power converters in the previous studies. We propose the prospects of using organic absorbers as PV power converters. For laser power conversion to be applied for portable devices, the PV module should be easily processable, thin, low-weight, and printable on flexible substrates. Organic PVs provide all the above advantages, and thus, could serve as a potential candidate for laser power harvesting applications. Moreover, they can also be made transparent, which could be utilized in power harvesting lamination coatings and windows. We had simulated the possibility of using single-junction and tandem photovoltaic structures for 670 nm and 850 nm laser power harvesting. FDTD simulations were conducted to optimize the PV structure in order to maximize the absorption at the laser wavelengths. A maximum PCE of 16.17% for single-junction PV and 24.85% for tandem PV was theoretically obtained.

scholarly journals A Circularly Polarized Implantable Rectenna for Microwave Wireless Power Transfer

Micromachines ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 121
Author(s):  
Chao Xu ◽  
Yi Fan ◽  
Xiongying Liu
Keyword(s):  
Wireless Power Transfer ◽  
Axial Ratio ◽  
Input Power ◽  
Impedance Bandwidth ◽  
Power Transfer ◽  
Wireless Power ◽  
Circularly Polarized ◽  
Rectangular Slot ◽  
Dc Power ◽  
Implantable Antenna

A circularly polarized implantable antenna integrated with a voltage-doubled rectifier (abbr., rectenna) is investigated for microwave wireless power transfer in the industrial, scientific, and medical (ISM) band of 2.4–2.48 GHz. The proposed antenna is miniaturized with the dimensions of 7.5 mm × 7.5 mm × 1.27 mm by etching four C-shaped open slots on the patch. A rectangular slot truncated diagonally is cut to improve the circular polarization performance of the antenna. The simulated impedance bandwidth in a three-layer phantom is 30.4% (1.9–2.58 GHz) with |S11| below −10 dB, and the 3-dB axial-ratio bandwidth is 16.9% (2.17–2.57 GHz). Furthermore, a voltage-doubled rectifier circuit that converts RF power to DC power is designed on the back of the antenna. The simulated RF-to-DC conversion efficiency can be up to 45% at the input power of 0 dBm. The proposed rectenna was fabricated and measured in fresh pork to verify the simulated results and evaluate the performance of wireless power transfer.

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